1209368141 has 2 divisors, whose sum is σ = 1209368142. Its totient is φ = 1209368140.

The previous prime is 1209368137. The next prime is 1209368177. The reversal of 1209368141 is 1418639021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1052742916 + 156625225 = 32446^2 + 12515^2 .

It is a cyclic number.

It is not a de Polignac number, because 1209368141 - 2² = 1209368137 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1209368101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 604684070 + 604684071.

It is an arithmetic number, because the mean of its divisors is an integer number (604684071).

Almost surely, 2^1209368141 is an apocalyptic number.

It is an amenable number.

1209368141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1209368141 is an equidigital number, since it uses as much as digits as its factorization.

1209368141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1209368141 is about 34775.9707413035. The cubic root of 1209368141 is about 1065.4167195220.

The spelling of 1209368141 in words is "one billion, two hundred nine million, three hundred sixty-eight thousand, one hundred forty-one".